Our paper detailing the asymmetry between the flux of solar neutrinos at night versus daytime: First Indication of Terrestrial Matter Effects on Solar Neutrino Oscillation has been selected as a Physical Review Letters Editors Suggestion as well as Featured in … Continue reading →

The T2K collaboration is releasing the latest results on electron neutrino appearance, starting with the European Physical Society meeting today. This includes 2013 data taking at 220 kW and a world-record 1.2e14 protons-per-pulse. In the new data we found 28 … Continue reading →

The T2K collaboration restarted data taking in early 2012 after recovery efforts from the Great Japan Earthquake of 2011 were completed at J-PARC. We collected an additional 1.6e20 protons on target, somewhat more than doubling the 2011 data set. We … Continue reading →

The T2K collaboration has submitted our first physics paper to Physical Review Letters. In it we report the most significant evidence to date that muon neutrinos transform into electron neutrinos. This transformation is governed by a previously unmeasured parameter of … Continue reading →